Anyone Have Experience With Aegis Batteries?

[6zfshdb]

I'm looking at this 52 V, 20 AH battery from Aegis:

Aegis 52V 20Ah Lithium Ion Battery Pack | NMC 52V Lithium Battery

The Aegis Battery 52V 20Ah Lithium ion battery powers your most high demanding electronics. This state-of-the-art rechargeable 52V lithium battery pack is expertly constructed with high quality 18650 NMC cells, delivering a lightweight, reliable and long-lasting power source. Engineered for...

www.aegisbattery.com

Only a 29% positive rating on Amazon but the complaints were mostly about shipping, not the product itself.

The price & specs seem too good to be true. Anyone have experience with Aegis?

 

[Fatknee]

No experience with Aegis.

Website is very suspect. No mention of who manufactures the cells. No mention of pack configuration or even how many cells are in the pack!

There is no such thing as a "deep cycle" lithium ion battery. Li batteries are still very fragile, unlike a flooded lead acid deep cycle.

If I have to ask for basic info, no way I'm spending my money with them.